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首页> 外文会议>Association of State Dam Safety Officials annual conference >'It is a New Dam, How Can it Fail? - FMEA for Design of New Tempe Town Lake Dam'
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'It is a New Dam, How Can it Fail? - FMEA for Design of New Tempe Town Lake Dam'

机译：'这是一座新水坝，怎么会失败？ -新坦佩湖大坝设计的FMEA'

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摘要

The current Tempe Town Lake Dam, consisting of four 15-foot high Bridgestone rubber bladders, will be replaced with eight hydraulically operated steel gates located approximately 100 feet downstream from the existing dam. As part of the design process a failure modes and effects analysis (FMEA) was performed by members of the design team, the contractor, the gate manufacturer and representatives from the City of Tempe, Flood Control District of Maricopa County, the State Dam Safety Group, and the 3rd Party Review Team. Failure modes were grouped according to the major components of the project, which included structural, geotechnical/foundation, gate, mechanical, electrical, and controls. Within each category specific failure modes were analyzed by the team beginning with development of the failure mode from initiation through failure, listing the adverse and positive factors, and assigning a Failure Mode Category. The process was aided by development of consequence levels before the workshop. Consequence levels were associated with downstream releases due to sudden failure of a gate as well as upstream flooding due to gates being damaged or stuck in the up position. It was noted early that upstream flooding was more critical to the City of Tempe than downstream releases; thus failure modes associated with gate(s) stuck in the up position were generally of higher consequence. The FMEA, which allowed examination of the design in the context of failure, was valuable because it challenged the designers to understand the inter-relationship between their respective parts of the system and in some cases resulted in minor changes to the design approach. More importantly the process highlighted operational and maintenance related issues that will be critical for a successful project. This paper summarizes the application of FMEA process to design of the new dam and presents the benefits and lessons learned from the one-day FMEA workshop.
机译：当前的坦佩镇湖大坝，由四个15英尺高的普利司通橡胶囊组成，将由位于现有大坝下游约100英尺的八个液压钢制闸门代替。作为设计过程的一部分，由设计团队，承包商，闸门制造商以及坦佩市，马里科帕县防洪区，州大坝安全小组的代表进行了失效模式和后果分析（FMEA）。 ，以及第三方审核小组。失败模式根据项目的主要组成部分进行了分组，包括结构，岩土/基础，闸门，机械，电气和控制。在每个类别中，团队都会分析特定的故障模式，从开发故障模式到从开始到故障，列出不利和正面因素，然后分配故障模式类别。在研讨会之前，通过制定结果水平来辅助该过程。结果水平与闸门突然失效引起的下游释放以及闸门损坏或卡在向上位置而导致的上游洪水有关。早期指出，上游洪水对坦佩市的影响比下游释放更为严重。因此，与闸门卡在向上位置相关的故障模式通常会产生更高的后果。 FMEA允许在失败的情况下检查设计，它很有价值，因为它挑战了设计人员了解系统各个部分之间的相互关系，并且在某些情况下，对设计方法进行了微小的更改。更重要的是，该过程强调了与运营和维护相关的问题，这些问题对于项目的成功至关重要。本文总结了FMEA工艺在新大坝设计中的应用，并介绍了为期一天的FMEA研讨会的收益和教训。

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